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Gerhard Lang
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Individual
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Individual
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Photographic Processing Devices Using Wet Methods
(AREA)
Abstract
10,570. Lang, G. May 7. Calendars.-A sheet a has marked on it in sections c the dates of the period preceding any noteworthy event, and a second sheet which may be divided by perforations into divisions similar to the sections of the first sheet, has on the front a picture illustrating the event, and is gummed at the back. As the dates in each section expire, that section is covered with the corresponding division of the picture.
GB190410570D1904-05-071904-05-07A New or Improved Calendar.
ExpiredGB190410570A
(en)