unclear meaning of po string 80

[nbehrnd]

I hereby request assistance for the translation of po string 80 into German, the penultimate to complete the set for this language.

Copy pasted from the weblate mask, the English reference reads

A patent or patent request. The number or record token is given in the number field. Use the type field to specify the type and the location field to indicate the scope of the patent, if different from the scope implied by the type. Note that the location field is treated as a key list with this entry type.

My difficulty is the uroboros of

Use the type field to specify the type and the location field to indicate the scope of the patent, if different from the scope implied by the type.

So far, the present Roman translations (Italian, Spanish, Brazilian Portuguese) were not helpful to offer a clarification because

• type perhaps intended to describe patent class in the international patent classification which is a hierarchy to assign each claim to one of the 7 possibilities

A Human necessities
B Performing Operations; Transporting
C Chemistry; Metallurgy
D Textiles; Paper
E Fixed Constructions
F Mechanical Engineering; Lighting; Heating; Weapons; Blasting
G Physics
H Electricity

such as C09B35/08 about azodyes (a group of molecules)

which is more than a mere bibliographic code right in the first page of the patent because this allows you to identify in databases similar and/or related patents (including those filed by other applicants) via patent families. Note: it is not unusual that a patent carries multiple IPC assignments simultaneously. As illustration see e.g. JPH0853625A (link to the freely accessible entry in the European database esp@acenet, though EPA is/was not in charge to grant a protection in Japan, vide infra).

• location: This might refer to the issuing office, but the English reference string doesn't describe it this way. If you want a protection across a nation, you file your application at a national office (e.g., INPI in France, USPTO for the U.S.A.). For supranational protection, you send the application e.g. to EPO (for European member states), or WIPO (for about 80% of UN's members which actually signed the treaty). Do you refer to this as address-like tag?