机读格式显示(MARC)

• 000 00649nam a2200241Ia 4500

• 001 0000570434

• 005 20191002105600.0

• 008 920708s1972 dcu 000 0 eng d

• 040 __ |a SJT |c SJT

• 086 0_ |a C 21.12/2:

• 086 0_ |a C 21.12/2:

• 086 0_ |a C 21.12/2:

• 090 __ |a T-657/ITC

• 093 __ |a T-657 |2 5

• 099 __ |a CAL 0220110198092m

• 110 1_ |a United States. |b Patent Office.

• 245 10 |a Index to classification.

• 260 __ |a [Washington] : |b U.S. GPO, |c 1972.

• 300 __ |a 1 v. (loose-leaf) ; |c 26 cm.

• 500 __ |a Cover title.

• 650 _0 |a Patents |z United States |x Indexes.

• 650 _0 |a Patents |x Classification.

• 920 __ |a 211180 |z 1