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THREE WAY SIGNS Ltd
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THREE WAY SIGNS Ltd
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Application filed by THREE WAY SIGNS LtdfiledCriticalTHREE WAY SIGNS Ltd
Application grantedgrantedCritical
Publication of FR738302ApublicationCriticalpatent/FR738302A/en
G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
G09F19/00—Advertising or display means not otherwise provided for
G09F19/12—Advertising or display means not otherwise provided for using special optical effects
G09F19/14—Advertising or display means not otherwise provided for using special optical effects displaying different signs depending upon the view-point of the observer
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FR738302D1931-06-101932-06-08
Improvements in the establishment of advertising signs, posters and other similar advertising devices
ExpiredFR738302A
(en)