|
GB1153861A
|
|
Crate
|
|
ES210493A1
|
|
Manufacturing procedure for a new ink applicable to pencil specially (Machine-translation by Google Translate, not legally binding)
|
|
ES184573A1
|
|
Improvements in writing instruments
|
|
ES179968A1
|
|
Improvements in deposits for writing instruments
|
|
ES174727A1
|
|
Improvements in writing instruments.
|
|
ES174704A1
|
|
Procedure for obtaining a new or perfected liquid to write or mark.
|
|
ES174705A1
|
|
Procedure for obtaining a new or perfected liquid to write or mark.
|
|
ES174633A1
|
|
Improvements in the instruments to write.
|
|
ES174544A1
|
|
Improvements in writing instruments.
|
|
ES174430A1
|
|
Improvements in stylographic and similar feathers
|
|
ES174146A1
|
|
Improvements in the instruments to write.
|
|
ES173898A1
|
|
Improvements in writing instruments
|
|
ES173581A1
|
|
Improvements in instruments to describe
|
|
ES169979A1
|
|
Improvements introduced in the construction of writing instruments
|
|
ES164361A1
|
|
Improvements introduced in the construction of stylographic instruments with punta de bolilla
|
|
ES164312A1
|
|
New sociographic instrument source
|
