Hebei hengtuo mechanical equipment Co., Ltd quality control

Standard:patent for invention

Number:ZL202010092929.7

Issue Date:2021-07-16

Expiry Date:2041-07-16

Scope/Range:Technology certification

Issued By:China National Intellectural Property Administration

Standard:patent for invention

Number:ZL202010092928.2

Issue Date:2021-07-16

Expiry Date:2041-07-16

Scope/Range:Technology certification

Issued By:China National Intellectural Property Administration

Standard:patent for utility models

Number:ZL201922380284.2

Issue Date:2020-10-27

Expiry Date:2040-10-27

Scope/Range:Technology certification

Issued By:China National Intellectural Property Administration

Standard:patent for utility models

Number:ZL201922380307.x

Issue Date:2020-10-16

Expiry Date:2040-10-16

Scope/Range:Technology certification

Issued By:China National Intellectural Property Administration

Standard:patent for utility models

Number:ZL201922382929.6

Issue Date:2020-10-16

Expiry Date:2040-10-16

Scope/Range:Technology certification

Issued By:China National Intellectural Property Administration

Standard:patent for utility models

Number:ZL201922380309.9

Issue Date:2020-09-08

Expiry Date:2040-09-08

Scope/Range:Technology certification

Issued By:China National Intellectural Property Administration