CN109436862A
(zh )
2019-03-08
小蚕饲育自动化生产线总成
DE1354826U
(https= )
Acosta
1961
The transfer of stem rust resistance from rye to wheat
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(zh )
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一种畜牧养殖厂用的回收处理设备
US1129214A
(en )
1915-02-23
Bar-piler.
CN110694949A
(zh )
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一种陶瓷发热片自动测试分拣机
US1018087A
(en )
1912-02-20
Blank packing and counting mechanism.
US943308A
(en )
1909-12-14
Alfalfa-cutter.
US478347A
(en )
1892-07-05
Sheet-delivery apparatus for printing-machines
US133184A
(en )
1872-11-19
Improvement in machines for feeding envelopes
US3144797A
(en )
1964-08-18
Slitter device tilting webs in accordance with the tilt of the receiving tray
US624878A
(en )
1899-05-09
sharp
US590410A
(en )
1897-09-21
Apparatus for steam boilers
Kavitha
0
D. BasheerAhamad and S'Azmi
Dempster et al.
1910
Significance of Draft in Relation to Boiler Economy: A Quantitive Study of a Smoke Preventing Device
DE1396055U
(https= )
DE270854C
(https= )
GB190525807A
(en )
1906-08-23
Improvements in and connected with Tobacco Cutting Machines.
DE1361944U
(https= )
US1141856A
(en )
1915-06-01
Sheet-delivery attachment for printing-presses.
DE46447C
(de )
Heurechen
DE1465038U
(https= )
US1593520A
(en )
1926-07-20
Crop-end pusher
GB1095874A
(en )
1967-12-20
Improvements in or relating to hay tedders
Fischer
0
Dann!