Declension table of pattraka

Masculine	Singular	Dual	Plural
Nominative	pattrakaḥ	pattrakau	pattrakāḥ
Vocative	pattraka	pattrakau	pattrakāḥ
Accusative	pattrakam	pattrakau	pattrakān
Instrumental	pattrakeṇa	pattrakābhyām	pattrakaiḥ pattrakebhiḥ
Dative	pattrakāya	pattrakābhyām	pattrakebhyaḥ
Ablative	pattrakāt	pattrakābhyām	pattrakebhyaḥ
Genitive	pattrakasya	pattrakayoḥ	pattrakāṇām
Locative	pattrake	pattrakayoḥ	pattrakeṣu

Compound pattraka -

Adverb -pattrakam -pattrakāt