Portable nitrogen inflating device for optical instrument
The utility model provides a portable nitrogen inflating device for an optical instrument. The portable nitrogen inflating device comprises a gas source, an electric control device, a controllable one-way valve, a universal joint and a gas pipe, the device belongs to a universal, intensive, small an...
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Main Authors | , , , , , , , , , , |
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Format | Patent |
Language | Chinese English |
Published |
07.06.2024
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Subjects | |
Online Access | Get full text |
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