Photrix
The Hickok Elecl. Inst. Co.
Sekonic Leader de Luxe
Sekonic Electric Co.
Sekonic Auto Range Model L-216
Sekonic Co. Ltd
Metrastar
Metrawatt A. G.
Polaroid PR-22 Exposure Meter
General Electric
Walz for Polaroid Cameras
Walz Trading Co.
Mini Rex II
Rex Messinstrumentenbau
Super MicroLite Model L-96
Sekonic Co. Ltd
Norwood Director Model C
Director Products Corporation
Spectra Combi II
Photo Research Corp.
Weston Ranger 9 Model 348
Weston Elec. Inst. Corp.
Sunset Unittic Model 31
Showa Koden Co. Ltd
Weston Master V Model S461-5
Sangamo Weston Ltd
Ikophot
Zeiss Ikon A. G.
Original Rebikoff
Weka
Electrophot Model M-S-A
J. Thos. Rhamstine