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technology (1975)
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technology (2011)
technology (1987) design type
Short desc: technology (1987)
Used by 4 stamps:
(See all uses as list)
Australia 8/19/1987 37c d=bionic ear perf=14.5x14.25
Australia 8/19/1987 53c d=Microchips perf=14.5x14.25
Australia 8/19/1987 63c d=Robotics perf=14.5x14.25
Australia 8/19/1987 68c d=ceramics perf=14.5x14.25