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Lau; Nam S.
Hong Kong, HK
No. of patents:

Patent Number Title Of Patent Date Issued
4697518 Molded fireworks October 6, 1987
A pyrotechnic device having a maximum explosive effect with a minimum quantity of explosive composition. The device is in the form of a polyurethane plastic foam body molded about a firecracker tube. The firecracker tube contains a small explosive composition charge therein and into

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