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All Patents in class 52/592.1
Patents 1 - 2 of 2
Number	Title	Classification(s)
89,172	Improvement in manufacturing lumber	144/368, 144/37, 144/371, 217/17, 52/592.1
145,221	Improvement in wooden panels	101/382.1, 144/353, 217/4, 52/592.1

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