Early 3M Computer Tape Type Numbers

Sun Jun 28 20:10:35 CDT 2020

As an aside, note that this brochure from Audio Devices:

https://ia800804.us.archive.org/29/items/TNM_Audio_Devices_Inc_-_Brochure_The_memory_busin_20170629_0528/TNM_Audio_Devices_Inc_-_Brochure_The_memory_busin_20170629_0528.pdf

(I put it at about 1962) differentiates between "computer tape" and
"instrumentation tape" in the product photos near the end of the brochure.

--Chuck