Margaret mentions this vascular clamp in Ep. # 133, "Comrades in Arms Part II". This was three episodes prior to this one. However, this episode (Y-114) was created previous to 132-133 (Y-116, Y117), so the error lays within the scheduling of airing the episodes.
Margaret: Klinger, have you seen my wedding band? It was wrapped in a piece of tissue paper.
Klinger: White tissue paper?!
Klinger: Sitting on a counter next to a coffee cup?!
Margaret: (excited) Yes! Yes! You found it, Klinger! Thank God!
Klinger: I, uh, sort of, threw it away.
(Margaret immediately starts strangling Klinger)
Margaret: (furious) THREW IT AWAY???!!!
(Klinger just got back from trying to find Margaret's wedding ring, which he threw away)
Margaret: (hopefully) Well?
Klinger: You know, Major, you have a very natural beauty. Why hide it with a lot of jewelry?
(Margaret immediately looks furious)
Klinger: Look, I went through every garbage bin in Korea. I even dove into a pile of burning rubbish 'cause I saw something shiny. It was only a lousy gold watch. Please, get a rifle, shoot me, put me out of your misery.
Margaret: (sounding insane) Oh no, you're not gonna get off that easy! From now on, I'm gonna make your life so rotten, you'll wish you were in combat!
Klinger: Major, I'm tired, I'm dirty, and I burned my nose. On top of that, I'm due on KP in five minutes and I won't have a chance to shower. How are you gonna make my life any more rotten-er?!
(Klinger storms off)
Margaret: ...I'LL WORK ON IT!!!
Charles: Gentlemen, may I see that nutcracker?
B.J.: Ah! The acid test.
Hawkeye: The Jack Acid test.
Hawkeye: How's the leg feel?
Cohen: There's some tingling and I can wiggle my toes. That means I can keep it, right, Doc?
Hawkeye: Of course, it's yours, isn't it?
Hawkeye: Father, do you have a prayer for an untried vascular clamp?
Father Mulcahy: No, but like you, I can invent one.
Margaret: How can I ever thank you?
Klinger: You could let me try that nail polish.
Hawkeye: Meet you later under the showers?
Nurse: No soap.
BJ: Another nurse down the drain.
Colonel Potter: How's the surgical clamp working, son?
Hawkeye: Like a lionness holding her cub.
Colonel Potter: Well, official channels could take forever. I remember when I applied for permission to get married. By the time the papers came through, my son was divorced.
BJ: Enemy advances bring medical advances.
Hawkeye: If this war goes on long enough, we'll find a cure for everything. If there's anyone left to be cured.
Hawkeye: (after getting his hand caught in a surgical clamp) I am now officially in extreme pain. You don't believe me? AAAAAA!
B.J.: (describing inscription on ring) Over hill over dale, our love will never fail!
Mr Shin: ... Peee-Yuuu!
Hawkeye: (reading Mr. Shin's clamp inscription) Over hill over dale.... Korean clamp will never fail.
Radar does not appear in this episode.
BJ says Joseph Cotten invented the cotton gin, a joking reference to the actor who starred in movies like The Third Man and Citizen Kane. The cotton gin was actually invented by Eli Whitney.
Hawkeye says they are "still a long way from Tipperary, wherever that is." "It's A Long Way To Tipperary" was a song that soldiers used to sing during World War I and subsequent conflicts.
Sgt. Zale says that with a screwdriver, he's "a regular Leonard da Vinci." Presumably he meant to say Leonardo da Vinci, the great inventor and artist from the Renaissance.