Heath Part Numbers

[mariandjim]

Long-ago-and-far-away we had a computer generated printout of the Heath part numbers giving the industry equivalent.  This covered quite a few different categories.  I need information along that line.  A complete and comprehensive list would be great but, failing in that, who can tell me what these parts are (believe them to be 74xx series TTL, not S nor LS):

443-38
443-39
443-40
443-41

Thank you in advance.  Jim

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