Cool weapons.
Not being a lawyer, I'll stay out of that discussion
However, I think that the thin-bladed swords might be "firangi" blades, which i believe were European rapier blades (trade blades) fitted with Indian handles.
As for the patas, I thought the bigger ones got up to 4' long. 3' would look stubby if this is so, although I think it's a saner length. Then again, the losers had the short swords, so go figure.
Fearn