| Ace |
Wenzel |
| Ansco |
GAF |
| Apex |
Universal Sound |
| Apollo |
Excel, American Optical |
| Auto-Test |
Capitol |
| Bell and Howell |
Osawa |
| Calvin |
Movie-Mite |
| Canary |
A.V.E. Corp. |
| Carena |
Photo America Corp. |
| CECO |
F and B/Ceco |
| Century |
Ampro |
| Cine-Educator |
Busch Film |
| Cinesalesman |
Busch Film |
| Corona |
Compco |
| Craig |
Craig, or Kalart |
| Drive In Movie |
Capitol |
| Duplex |
Film Circulation |
| Filmo |
Bell and Howell |
| Fodeco |
Technical Devices |
| Franklin |
Compco |
| Graflex |
Singer |
| Hanomat |
Hanimex |
| Heiland |
Elmo |
| Holmes |
Forway or Holmes |
| Home Movie |
Agfa |
| Ikolua |
Zeiss |
| JAN |
Lumen or Bell and Howell |
| Kodak |
Eastman |
| Little Giant |
Forway |
| Lytlevision |
AV Sales |
| Mighty Midget |
L. E. Davidson |
| Natco |
Helene Curtis |
| Panama |
Capitol |
| Panorama |
Capitol |
|
| Paramount |
Ampro |
| Paromel |
DeVry |
| Pathe-Noris |
Radiant-Pathe |
| Peep Show |
Capitol |
| Pekoscope |
Excel |
| Photophone |
RCA |
| Porto-Sound |
Capitol |
| PRC |
Picture Recording |
| Projecto-Sell |
Webster |
| Raynox |
Petri Kine |
| Rex |
Holmes |
| Ricoh |
Bernard, Braun |
| Ringmaster |
Bell and Howell |
| Silma |
Hervic |
| Sond King |
Conn. Tel. |
| Star-D |
Davidson |
| Strip Master |
Hoover |
| Syncrofilm |
Weber |
| Talk Pix |
Projection Service |
| Target Systems |
LaBelle |
| Tele-Color |
Davidson |
| Teleshow |
Hoppman Corp. |
| Test Pilot |
Capitol |
| Tri-Purpose |
SVE |
| Turnpike |
Capitol |
| Universal |
Safety Sentry |
| Univex |
Universal Camera |
| Valette |
Conway |
| Vicaudio |
Vicom |
| Viceroy |
Bernard, Sawyer's |
| Videotronic |
MPO |
| Voigtlander |
Zeiss |
| Wollensak |
Wollensak or Revere |
|