Apparatus for producing transparency slide units

Details Apparatus for producing transparency slide units Apparatus for producing transparency slide units

1974-11-26

1976-11-16

Powell, William A.

Adhesive bonding and miscellaneous chemical manufacture

Surface bonding means and/or assembly means therefor

With cutting, punching, piercing, severing, or tearing

156108, 156566, 156580, B29C 2702, B32B 3116

Patent

active

039922430

ABSTRACT:
A transparency slide unit for use in projectors and viewers comprising a film diapositive mounted and positively retained in a frame composed of two separate and substantially uniform frame halves permanently interlocked in mutually offset positions by rivetting, and an apparatus for mounting film transparencies in such frames.

REFERENCES:
patent: 2889066 (1959-06-01), Alberty
patent: 3562074 (1971-02-01), Mundt et al.
patent: 3816219 (1974-06-01), Hurlbut et al.

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