The Technical World Magazine, Volume 10Technical World Company, 1908 |
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Page 100
POSTAGE STAMP VENDING MACHINES By BERT L. FORSE REMARKABLE SAILING VESSEL By C. R. PATTERSON SWAMP - LAND. AUTOMATIC STAMP - SELLING MACHINE AND ITS INVENTOR . VENDS POSTAL CARDS AND ONE- AND TWO - CENT STAMPS. men were engaged at the ...
POSTAGE STAMP VENDING MACHINES By BERT L. FORSE REMARKABLE SAILING VESSEL By C. R. PATTERSON SWAMP - LAND. AUTOMATIC STAMP - SELLING MACHINE AND ITS INVENTOR . VENDS POSTAL CARDS AND ONE- AND TWO - CENT STAMPS. men were engaged at the ...
Page 322
... machine is an improvement over the old Wheatstone ing from two hundred to four hundred messages in nine hours . The machines work duplex , that is , two messages being sent on the same wire simultaneously . CLOCK OPERATED BY HEAT The ...
... machine is an improvement over the old Wheatstone ing from two hundred to four hundred messages in nine hours . The machines work duplex , that is , two messages being sent on the same wire simultaneously . CLOCK OPERATED BY HEAT The ...
Page 614
... MACHINE TAKEN APART AND READY TO BE PACKED. from the black sand and again counted , the test showing a marvelous record of ninety - five pieces regained . There is no other machine method , process or device that has ever equaled these ...
... MACHINE TAKEN APART AND READY TO BE PACKED. from the black sand and again counted , the test showing a marvelous record of ninety - five pieces regained . There is no other machine method , process or device that has ever equaled these ...
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